/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:55:12,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:55:12,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:55:12,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 21:55:12,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:55:12,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:55:12,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:55:12,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:55:12,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:55:12,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:55:12,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:55:12,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:55:12,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:55:12,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:55:12,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:55:12,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:55:12,227 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:55:12,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:55:12,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:55:12,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:55:12,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:55:12,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:55:12,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:55:12,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:55:12,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:55:12,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:55:12,230 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:55:12,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:55:12,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:55:12,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:55:12,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:55:12,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:55:12,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:55:12,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:55:12,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:55:12,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:55:12,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:55:12,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:55:12,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:55:12,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:55:12,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:55:12,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:55:12,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:55:12,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:55:12,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:55:12,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:55:12,725 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:55:12,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2022-10-15 21:55:12,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7971c8a29/23ba01673fa2450db7cf0e67298c5daa/FLAGd2257c613 [2022-10-15 21:55:13,565 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:55:13,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2022-10-15 21:55:13,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7971c8a29/23ba01673fa2450db7cf0e67298c5daa/FLAGd2257c613 [2022-10-15 21:55:13,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7971c8a29/23ba01673fa2450db7cf0e67298c5daa [2022-10-15 21:55:13,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:55:13,854 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:55:13,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:55:13,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:55:13,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:55:13,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:55:13" (1/1) ... [2022-10-15 21:55:13,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b2a7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:13, skipping insertion in model container [2022-10-15 21:55:13,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:55:13" (1/1) ... [2022-10-15 21:55:13,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:55:13,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:55:14,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c[9488,9501] [2022-10-15 21:55:14,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:55:14,260 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:55:14,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c[9488,9501] [2022-10-15 21:55:14,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:55:14,387 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:55:14,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14 WrapperNode [2022-10-15 21:55:14,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:55:14,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:55:14,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:55:14,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:55:14,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,506 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 339 [2022-10-15 21:55:14,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:55:14,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:55:14,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:55:14,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:55:14,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:55:14,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:55:14,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:55:14,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:55:14,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (1/1) ... [2022-10-15 21:55:14,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:55:14,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:55:14,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:55:14,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:55:14,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:55:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:55:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:55:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:55:14,853 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:55:14,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:55:15,490 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:55:15,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:55:15,501 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:55:15,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:55:15 BoogieIcfgContainer [2022-10-15 21:55:15,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:55:15,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:55:15,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:55:15,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:55:15,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:55:13" (1/3) ... [2022-10-15 21:55:15,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d56fb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:55:15, skipping insertion in model container [2022-10-15 21:55:15,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:55:14" (2/3) ... [2022-10-15 21:55:15,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d56fb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:55:15, skipping insertion in model container [2022-10-15 21:55:15,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:55:15" (3/3) ... [2022-10-15 21:55:15,517 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c [2022-10-15 21:55:15,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:55:15,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 21:55:15,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:55:15,621 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e4dd4df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:55:15,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 21:55:15,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 119 states have (on average 1.7394957983193278) internal successors, (207), 139 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:15,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 21:55:15,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:15,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 21:55:15,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:15,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-15 21:55:15,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:15,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358101877] [2022-10-15 21:55:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:15,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:15,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358101877] [2022-10-15 21:55:15,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358101877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:15,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:15,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 21:55:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437161461] [2022-10-15 21:55:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 21:55:15,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:15,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 21:55:15,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 21:55:15,976 INFO L87 Difference]: Start difference. First operand has 140 states, 119 states have (on average 1.7394957983193278) internal successors, (207), 139 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:16,037 INFO L93 Difference]: Finished difference Result 233 states and 345 transitions. [2022-10-15 21:55:16,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 21:55:16,039 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 21:55:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:16,051 INFO L225 Difference]: With dead ends: 233 [2022-10-15 21:55:16,052 INFO L226 Difference]: Without dead ends: 127 [2022-10-15 21:55:16,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 21:55:16,061 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:16,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-15 21:55:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-10-15 21:55:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 115 states have (on average 1.6608695652173913) internal successors, (191), 126 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 191 transitions. [2022-10-15 21:55:16,115 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 191 transitions. Word has length 4 [2022-10-15 21:55:16,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:16,116 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 191 transitions. [2022-10-15 21:55:16,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 191 transitions. [2022-10-15 21:55:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 21:55:16,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:16,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:16,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:55:16,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:16,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1516401039, now seen corresponding path program 1 times [2022-10-15 21:55:16,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:16,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230610399] [2022-10-15 21:55:16,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:16,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230610399] [2022-10-15 21:55:16,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230610399] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:16,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:16,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:55:16,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107609737] [2022-10-15 21:55:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:16,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:55:16,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:55:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:16,397 INFO L87 Difference]: Start difference. First operand 127 states and 191 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:16,492 INFO L93 Difference]: Finished difference Result 222 states and 326 transitions. [2022-10-15 21:55:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:55:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-15 21:55:16,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:16,494 INFO L225 Difference]: With dead ends: 222 [2022-10-15 21:55:16,495 INFO L226 Difference]: Without dead ends: 127 [2022-10-15 21:55:16,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:55:16,498 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 3 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:16,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 729 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-15 21:55:16,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-10-15 21:55:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 115 states have (on average 1.4521739130434783) internal successors, (167), 126 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-10-15 21:55:16,513 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 26 [2022-10-15 21:55:16,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:16,513 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-10-15 21:55:16,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,514 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-10-15 21:55:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 21:55:16,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:16,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:16,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:55:16,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:16,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash -57276354, now seen corresponding path program 1 times [2022-10-15 21:55:16,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:16,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897559062] [2022-10-15 21:55:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:16,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:16,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:16,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897559062] [2022-10-15 21:55:16,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897559062] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:16,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:16,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:16,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319819434] [2022-10-15 21:55:16,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:16,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:16,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:16,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:16,768 INFO L87 Difference]: Start difference. First operand 127 states and 167 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:16,838 INFO L93 Difference]: Finished difference Result 297 states and 409 transitions. [2022-10-15 21:55:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:16,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-15 21:55:16,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:16,847 INFO L225 Difference]: With dead ends: 297 [2022-10-15 21:55:16,847 INFO L226 Difference]: Without dead ends: 206 [2022-10-15 21:55:16,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:16,852 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 114 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:16,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 379 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-15 21:55:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 194. [2022-10-15 21:55:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 182 states have (on average 1.521978021978022) internal successors, (277), 193 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 277 transitions. [2022-10-15 21:55:16,893 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 277 transitions. Word has length 55 [2022-10-15 21:55:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:16,894 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 277 transitions. [2022-10-15 21:55:16,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 277 transitions. [2022-10-15 21:55:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 21:55:16,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:16,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:16,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:55:16,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:16,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:16,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1618524544, now seen corresponding path program 1 times [2022-10-15 21:55:16,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:16,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186876939] [2022-10-15 21:55:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:17,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:17,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186876939] [2022-10-15 21:55:17,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186876939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:17,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:17,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751070208] [2022-10-15 21:55:17,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:17,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:17,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:17,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:17,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:17,127 INFO L87 Difference]: Start difference. First operand 194 states and 277 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:17,184 INFO L93 Difference]: Finished difference Result 486 states and 719 transitions. [2022-10-15 21:55:17,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-15 21:55:17,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:17,189 INFO L225 Difference]: With dead ends: 486 [2022-10-15 21:55:17,189 INFO L226 Difference]: Without dead ends: 328 [2022-10-15 21:55:17,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:17,205 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 109 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:17,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 370 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-15 21:55:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 316. [2022-10-15 21:55:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 304 states have (on average 1.5657894736842106) internal successors, (476), 315 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 476 transitions. [2022-10-15 21:55:17,261 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 476 transitions. Word has length 56 [2022-10-15 21:55:17,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:17,261 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 476 transitions. [2022-10-15 21:55:17,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,262 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 476 transitions. [2022-10-15 21:55:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:55:17,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:17,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:17,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:55:17,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:17,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1291053326, now seen corresponding path program 1 times [2022-10-15 21:55:17,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:17,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218140458] [2022-10-15 21:55:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:17,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:17,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218140458] [2022-10-15 21:55:17,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218140458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:17,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:17,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:17,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866811472] [2022-10-15 21:55:17,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:17,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:17,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:17,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:17,350 INFO L87 Difference]: Start difference. First operand 316 states and 476 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:17,389 INFO L93 Difference]: Finished difference Result 828 states and 1276 transitions. [2022-10-15 21:55:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:17,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-15 21:55:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:17,394 INFO L225 Difference]: With dead ends: 828 [2022-10-15 21:55:17,394 INFO L226 Difference]: Without dead ends: 548 [2022-10-15 21:55:17,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:17,396 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 104 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:17,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 361 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-10-15 21:55:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 536. [2022-10-15 21:55:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 524 states have (on average 1.5877862595419847) internal successors, (832), 535 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 832 transitions. [2022-10-15 21:55:17,426 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 832 transitions. Word has length 57 [2022-10-15 21:55:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:17,427 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 832 transitions. [2022-10-15 21:55:17,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 832 transitions. [2022-10-15 21:55:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:55:17,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:17,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:17,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:55:17,430 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:17,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2127853776, now seen corresponding path program 1 times [2022-10-15 21:55:17,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:17,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386206218] [2022-10-15 21:55:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:17,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:17,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:17,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386206218] [2022-10-15 21:55:17,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386206218] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:17,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:17,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:17,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536851470] [2022-10-15 21:55:17,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:17,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:55:17,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:17,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:55:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:55:17,527 INFO L87 Difference]: Start difference. First operand 536 states and 832 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:17,705 INFO L93 Difference]: Finished difference Result 1534 states and 2424 transitions. [2022-10-15 21:55:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:55:17,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-15 21:55:17,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:17,715 INFO L225 Difference]: With dead ends: 1534 [2022-10-15 21:55:17,715 INFO L226 Difference]: Without dead ends: 1532 [2022-10-15 21:55:17,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:17,717 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 385 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:17,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 445 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:55:17,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2022-10-15 21:55:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1024. [2022-10-15 21:55:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1012 states have (on average 1.592885375494071) internal successors, (1612), 1023 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1612 transitions. [2022-10-15 21:55:17,775 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1612 transitions. Word has length 58 [2022-10-15 21:55:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:17,776 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1612 transitions. [2022-10-15 21:55:17,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1612 transitions. [2022-10-15 21:55:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 21:55:17,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:17,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:17,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:55:17,778 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:17,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1538958069, now seen corresponding path program 1 times [2022-10-15 21:55:17,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:17,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823403332] [2022-10-15 21:55:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:17,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:17,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:17,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823403332] [2022-10-15 21:55:17,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823403332] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:17,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:17,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24048750] [2022-10-15 21:55:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:17,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:55:17,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:17,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:55:17,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:55:17,914 INFO L87 Difference]: Start difference. First operand 1024 states and 1612 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:18,066 INFO L93 Difference]: Finished difference Result 1522 states and 2408 transitions. [2022-10-15 21:55:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:55:18,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-15 21:55:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:18,076 INFO L225 Difference]: With dead ends: 1522 [2022-10-15 21:55:18,077 INFO L226 Difference]: Without dead ends: 1520 [2022-10-15 21:55:18,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:18,080 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 380 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:18,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 261 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:55:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-10-15 21:55:18,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1512. [2022-10-15 21:55:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1500 states have (on average 1.584) internal successors, (2376), 1511 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2376 transitions. [2022-10-15 21:55:18,167 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2376 transitions. Word has length 59 [2022-10-15 21:55:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:18,169 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 2376 transitions. [2022-10-15 21:55:18,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2376 transitions. [2022-10-15 21:55:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 21:55:18,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:18,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:18,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:55:18,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash 463060338, now seen corresponding path program 1 times [2022-10-15 21:55:18,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:18,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220089560] [2022-10-15 21:55:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:18,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:18,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220089560] [2022-10-15 21:55:18,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220089560] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:18,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:18,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:55:18,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328500731] [2022-10-15 21:55:18,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:18,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:55:18,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:18,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:55:18,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:18,343 INFO L87 Difference]: Start difference. First operand 1512 states and 2376 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:18,683 INFO L93 Difference]: Finished difference Result 2512 states and 3920 transitions. [2022-10-15 21:55:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:55:18,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 21:55:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:18,697 INFO L225 Difference]: With dead ends: 2512 [2022-10-15 21:55:18,697 INFO L226 Difference]: Without dead ends: 2510 [2022-10-15 21:55:18,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:55:18,699 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 646 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:18,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 736 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:55:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2022-10-15 21:55:18,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2000. [2022-10-15 21:55:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1988 states have (on average 1.5714285714285714) internal successors, (3124), 1999 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 3124 transitions. [2022-10-15 21:55:18,830 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 3124 transitions. Word has length 60 [2022-10-15 21:55:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:18,831 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 3124 transitions. [2022-10-15 21:55:18,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 3124 transitions. [2022-10-15 21:55:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 21:55:18,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:18,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:18,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:55:18,845 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1469969047, now seen corresponding path program 1 times [2022-10-15 21:55:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995024228] [2022-10-15 21:55:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:19,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:19,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995024228] [2022-10-15 21:55:19,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995024228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:19,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:19,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:55:19,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411917370] [2022-10-15 21:55:19,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:55:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:55:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:19,025 INFO L87 Difference]: Start difference. First operand 2000 states and 3124 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:19,277 INFO L93 Difference]: Finished difference Result 2504 states and 3904 transitions. [2022-10-15 21:55:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:55:19,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-15 21:55:19,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:19,290 INFO L225 Difference]: With dead ends: 2504 [2022-10-15 21:55:19,291 INFO L226 Difference]: Without dead ends: 2502 [2022-10-15 21:55:19,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:55:19,294 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 655 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:19,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 456 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:55:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-10-15 21:55:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2488. [2022-10-15 21:55:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2476 states have (on average 1.55735056542811) internal successors, (3856), 2487 states have internal predecessors, (3856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:19,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3856 transitions. [2022-10-15 21:55:19,460 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3856 transitions. Word has length 61 [2022-10-15 21:55:19,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:19,461 INFO L495 AbstractCegarLoop]: Abstraction has 2488 states and 3856 transitions. [2022-10-15 21:55:19,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3856 transitions. [2022-10-15 21:55:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-15 21:55:19,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:19,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:19,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:55:19,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1675599340, now seen corresponding path program 1 times [2022-10-15 21:55:19,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:19,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388570728] [2022-10-15 21:55:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:19,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:19,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:19,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388570728] [2022-10-15 21:55:19,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388570728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:19,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:19,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:55:19,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097845381] [2022-10-15 21:55:19,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:19,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:55:19,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:55:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:55:19,591 INFO L87 Difference]: Start difference. First operand 2488 states and 3856 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:20,056 INFO L93 Difference]: Finished difference Result 6424 states and 9952 transitions. [2022-10-15 21:55:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 21:55:20,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-15 21:55:20,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:20,079 INFO L225 Difference]: With dead ends: 6424 [2022-10-15 21:55:20,079 INFO L226 Difference]: Without dead ends: 3972 [2022-10-15 21:55:20,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:55:20,085 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 881 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:20,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1121 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:55:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-10-15 21:55:20,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2976. [2022-10-15 21:55:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2964 states have (on average 1.5371120107962213) internal successors, (4556), 2975 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4556 transitions. [2022-10-15 21:55:20,261 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4556 transitions. Word has length 62 [2022-10-15 21:55:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:20,261 INFO L495 AbstractCegarLoop]: Abstraction has 2976 states and 4556 transitions. [2022-10-15 21:55:20,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4556 transitions. [2022-10-15 21:55:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 21:55:20,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:20,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:20,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 21:55:20,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:20,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1841582035, now seen corresponding path program 1 times [2022-10-15 21:55:20,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:20,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000118205] [2022-10-15 21:55:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:20,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:20,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:20,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000118205] [2022-10-15 21:55:20,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000118205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:20,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:20,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332732571] [2022-10-15 21:55:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:20,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:20,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:20,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:20,314 INFO L87 Difference]: Start difference. First operand 2976 states and 4556 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:20,577 INFO L93 Difference]: Finished difference Result 8136 states and 12444 transitions. [2022-10-15 21:55:20,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:20,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 21:55:20,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:20,616 INFO L225 Difference]: With dead ends: 8136 [2022-10-15 21:55:20,617 INFO L226 Difference]: Without dead ends: 5196 [2022-10-15 21:55:20,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:20,623 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 115 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:20,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 396 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:20,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2022-10-15 21:55:20,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 5184. [2022-10-15 21:55:20,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5172 states have (on average 1.522815158546017) internal successors, (7876), 5183 states have internal predecessors, (7876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7876 transitions. [2022-10-15 21:55:20,997 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7876 transitions. Word has length 63 [2022-10-15 21:55:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:20,997 INFO L495 AbstractCegarLoop]: Abstraction has 5184 states and 7876 transitions. [2022-10-15 21:55:21,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7876 transitions. [2022-10-15 21:55:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 21:55:21,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:21,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:21,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 21:55:21,008 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:21,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:21,009 INFO L85 PathProgramCache]: Analyzing trace with hash -403971527, now seen corresponding path program 1 times [2022-10-15 21:55:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:21,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683676519] [2022-10-15 21:55:21,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:21,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:21,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:21,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683676519] [2022-10-15 21:55:21,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683676519] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:21,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:21,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:55:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238040817] [2022-10-15 21:55:21,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:21,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:55:21,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:21,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:55:21,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:55:21,125 INFO L87 Difference]: Start difference. First operand 5184 states and 7876 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:21,836 INFO L93 Difference]: Finished difference Result 8638 states and 13252 transitions. [2022-10-15 21:55:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 21:55:21,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 21:55:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:21,881 INFO L225 Difference]: With dead ends: 8638 [2022-10-15 21:55:21,882 INFO L226 Difference]: Without dead ends: 8636 [2022-10-15 21:55:21,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:55:21,887 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 1267 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:21,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 758 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:55:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8636 states. [2022-10-15 21:55:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8636 to 8608. [2022-10-15 21:55:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8608 states, 8596 states have (on average 1.5193113075849232) internal successors, (13060), 8607 states have internal predecessors, (13060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:22,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8608 states to 8608 states and 13060 transitions. [2022-10-15 21:55:22,493 INFO L78 Accepts]: Start accepts. Automaton has 8608 states and 13060 transitions. Word has length 63 [2022-10-15 21:55:22,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:22,494 INFO L495 AbstractCegarLoop]: Abstraction has 8608 states and 13060 transitions. [2022-10-15 21:55:22,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8608 states and 13060 transitions. [2022-10-15 21:55:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-15 21:55:22,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:22,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:22,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 21:55:22,497 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash 109257652, now seen corresponding path program 1 times [2022-10-15 21:55:22,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:22,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977701247] [2022-10-15 21:55:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:22,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:22,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:22,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977701247] [2022-10-15 21:55:22,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977701247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:22,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:22,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:22,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067656375] [2022-10-15 21:55:22,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:22,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:22,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:22,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:22,574 INFO L87 Difference]: Start difference. First operand 8608 states and 13060 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:23,472 INFO L93 Difference]: Finished difference Result 25192 states and 38148 transitions. [2022-10-15 21:55:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-15 21:55:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:23,520 INFO L225 Difference]: With dead ends: 25192 [2022-10-15 21:55:23,520 INFO L226 Difference]: Without dead ends: 16620 [2022-10-15 21:55:23,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:23,535 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 88 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:23,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 340 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16620 states. [2022-10-15 21:55:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16620 to 16608. [2022-10-15 21:55:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16608 states, 16596 states have (on average 1.5042178838274283) internal successors, (24964), 16607 states have internal predecessors, (24964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16608 states to 16608 states and 24964 transitions. [2022-10-15 21:55:24,776 INFO L78 Accepts]: Start accepts. Automaton has 16608 states and 24964 transitions. Word has length 91 [2022-10-15 21:55:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:24,776 INFO L495 AbstractCegarLoop]: Abstraction has 16608 states and 24964 transitions. [2022-10-15 21:55:24,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 16608 states and 24964 transitions. [2022-10-15 21:55:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-15 21:55:24,780 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:24,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:24,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 21:55:24,781 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1733421941, now seen corresponding path program 1 times [2022-10-15 21:55:24,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:24,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561803397] [2022-10-15 21:55:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:55:24,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:24,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561803397] [2022-10-15 21:55:24,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561803397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:24,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:24,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76801925] [2022-10-15 21:55:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:24,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:55:24,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:24,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:55:24,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:55:24,902 INFO L87 Difference]: Start difference. First operand 16608 states and 24964 transitions. Second operand has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:25,846 INFO L93 Difference]: Finished difference Result 23248 states and 35140 transitions. [2022-10-15 21:55:25,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:55:25,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-10-15 21:55:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:25,906 INFO L225 Difference]: With dead ends: 23248 [2022-10-15 21:55:25,906 INFO L226 Difference]: Without dead ends: 23246 [2022-10-15 21:55:25,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:55:25,916 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 203 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:25,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 481 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:55:25,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23246 states. [2022-10-15 21:55:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23246 to 19920. [2022-10-15 21:55:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19920 states, 19908 states have (on average 1.5063291139240507) internal successors, (29988), 19919 states have internal predecessors, (29988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19920 states to 19920 states and 29988 transitions. [2022-10-15 21:55:27,174 INFO L78 Accepts]: Start accepts. Automaton has 19920 states and 29988 transitions. Word has length 92 [2022-10-15 21:55:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:27,175 INFO L495 AbstractCegarLoop]: Abstraction has 19920 states and 29988 transitions. [2022-10-15 21:55:27,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 19920 states and 29988 transitions. [2022-10-15 21:55:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 21:55:27,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:27,180 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:27,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 21:55:27,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:27,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -102936629, now seen corresponding path program 1 times [2022-10-15 21:55:27,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:27,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943054341] [2022-10-15 21:55:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:27,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:55:27,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:27,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943054341] [2022-10-15 21:55:27,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943054341] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:27,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:27,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109410022] [2022-10-15 21:55:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:27,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:27,283 INFO L87 Difference]: Start difference. First operand 19920 states and 29988 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:28,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:28,326 INFO L93 Difference]: Finished difference Result 44346 states and 66566 transitions. [2022-10-15 21:55:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:28,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 21:55:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:28,377 INFO L225 Difference]: With dead ends: 44346 [2022-10-15 21:55:28,377 INFO L226 Difference]: Without dead ends: 24462 [2022-10-15 21:55:28,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:28,410 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:28,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 290 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24462 states. [2022-10-15 21:55:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24462 to 24266. [2022-10-15 21:55:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24266 states, 24254 states have (on average 1.4937742228086088) internal successors, (36230), 24265 states have internal predecessors, (36230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24266 states to 24266 states and 36230 transitions. [2022-10-15 21:55:29,662 INFO L78 Accepts]: Start accepts. Automaton has 24266 states and 36230 transitions. Word has length 93 [2022-10-15 21:55:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:29,662 INFO L495 AbstractCegarLoop]: Abstraction has 24266 states and 36230 transitions. [2022-10-15 21:55:29,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24266 states and 36230 transitions. [2022-10-15 21:55:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 21:55:29,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:29,667 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:29,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 21:55:29,667 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash 115918089, now seen corresponding path program 1 times [2022-10-15 21:55:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:29,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427812512] [2022-10-15 21:55:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:29,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:29,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:29,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427812512] [2022-10-15 21:55:29,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427812512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:29,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:29,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850676009] [2022-10-15 21:55:29,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:29,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:29,739 INFO L87 Difference]: Start difference. First operand 24266 states and 36230 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:31,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:31,866 INFO L93 Difference]: Finished difference Result 70898 states and 105542 transitions. [2022-10-15 21:55:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:31,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 21:55:31,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:31,935 INFO L225 Difference]: With dead ends: 70898 [2022-10-15 21:55:31,935 INFO L226 Difference]: Without dead ends: 46670 [2022-10-15 21:55:31,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:31,974 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 85 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:31,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 327 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46670 states. [2022-10-15 21:55:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46670 to 46658. [2022-10-15 21:55:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46658 states, 46646 states have (on average 1.4764395660935556) internal successors, (68870), 46657 states have internal predecessors, (68870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46658 states to 46658 states and 68870 transitions. [2022-10-15 21:55:34,654 INFO L78 Accepts]: Start accepts. Automaton has 46658 states and 68870 transitions. Word has length 93 [2022-10-15 21:55:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:34,655 INFO L495 AbstractCegarLoop]: Abstraction has 46658 states and 68870 transitions. [2022-10-15 21:55:34,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 46658 states and 68870 transitions. [2022-10-15 21:55:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 21:55:34,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:34,676 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:34,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 21:55:34,677 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:34,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash 280110054, now seen corresponding path program 1 times [2022-10-15 21:55:34,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:34,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439427719] [2022-10-15 21:55:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:34,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:55:34,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:34,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439427719] [2022-10-15 21:55:34,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439427719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:34,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:34,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:55:34,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748780844] [2022-10-15 21:55:34,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:34,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:55:34,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:55:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:34,804 INFO L87 Difference]: Start difference. First operand 46658 states and 68870 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:38,618 INFO L93 Difference]: Finished difference Result 136538 states and 200774 transitions. [2022-10-15 21:55:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:55:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 21:55:38,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:38,793 INFO L225 Difference]: With dead ends: 136538 [2022-10-15 21:55:38,793 INFO L226 Difference]: Without dead ends: 89918 [2022-10-15 21:55:38,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:55:38,849 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 89 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:38,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 349 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:55:38,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89918 states. [2022-10-15 21:55:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89918 to 89906. [2022-10-15 21:55:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89906 states, 89894 states have (on average 1.4570716621799007) internal successors, (130982), 89905 states have internal predecessors, (130982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89906 states to 89906 states and 130982 transitions. [2022-10-15 21:55:43,921 INFO L78 Accepts]: Start accepts. Automaton has 89906 states and 130982 transitions. Word has length 93 [2022-10-15 21:55:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:43,922 INFO L495 AbstractCegarLoop]: Abstraction has 89906 states and 130982 transitions. [2022-10-15 21:55:43,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 89906 states and 130982 transitions. [2022-10-15 21:55:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 21:55:43,931 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:43,931 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:43,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 21:55:43,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:43,933 INFO L85 PathProgramCache]: Analyzing trace with hash 628840045, now seen corresponding path program 1 times [2022-10-15 21:55:43,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:43,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318171401] [2022-10-15 21:55:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:43,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:55:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:44,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318171401] [2022-10-15 21:55:44,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318171401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:44,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:44,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:55:44,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583027273] [2022-10-15 21:55:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:44,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:55:44,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:55:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:44,090 INFO L87 Difference]: Start difference. First operand 89906 states and 130982 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:55:48,832 INFO L93 Difference]: Finished difference Result 107524 states and 156774 transitions. [2022-10-15 21:55:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:55:48,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-15 21:55:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:55:49,034 INFO L225 Difference]: With dead ends: 107524 [2022-10-15 21:55:49,035 INFO L226 Difference]: Without dead ends: 107522 [2022-10-15 21:55:49,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:55:49,060 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 462 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:55:49,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 639 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:55:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107522 states. [2022-10-15 21:55:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107522 to 107506. [2022-10-15 21:55:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107506 states, 107494 states have (on average 1.4524903715556217) internal successors, (156134), 107505 states have internal predecessors, (156134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107506 states to 107506 states and 156134 transitions. [2022-10-15 21:55:54,739 INFO L78 Accepts]: Start accepts. Automaton has 107506 states and 156134 transitions. Word has length 94 [2022-10-15 21:55:54,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:55:54,739 INFO L495 AbstractCegarLoop]: Abstraction has 107506 states and 156134 transitions. [2022-10-15 21:55:54,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:55:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 107506 states and 156134 transitions. [2022-10-15 21:55:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 21:55:54,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:55:54,751 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:55:54,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 21:55:54,751 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:55:54,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:55:54,752 INFO L85 PathProgramCache]: Analyzing trace with hash -96852317, now seen corresponding path program 1 times [2022-10-15 21:55:54,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:55:54,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640065849] [2022-10-15 21:55:54,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:55:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:55:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:55:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:55:54,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:55:54,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640065849] [2022-10-15 21:55:54,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640065849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:55:54,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:55:54,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:55:54,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621196056] [2022-10-15 21:55:54,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:55:54,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:55:54,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:55:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:55:54,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:55:54,888 INFO L87 Difference]: Start difference. First operand 107506 states and 156134 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:56:00,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:56:00,157 INFO L93 Difference]: Finished difference Result 125122 states and 181286 transitions. [2022-10-15 21:56:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:56:00,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-15 21:56:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:56:00,388 INFO L225 Difference]: With dead ends: 125122 [2022-10-15 21:56:00,388 INFO L226 Difference]: Without dead ends: 125120 [2022-10-15 21:56:00,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:56:00,419 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 457 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:56:00,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 625 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:56:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125120 states. [2022-10-15 21:56:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125120 to 120730. [2022-10-15 21:56:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120730 states, 120718 states have (on average 1.447124703855266) internal successors, (174694), 120729 states have internal predecessors, (174694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:56:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120730 states to 120730 states and 174694 transitions. [2022-10-15 21:56:06,681 INFO L78 Accepts]: Start accepts. Automaton has 120730 states and 174694 transitions. Word has length 94 [2022-10-15 21:56:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:56:06,682 INFO L495 AbstractCegarLoop]: Abstraction has 120730 states and 174694 transitions. [2022-10-15 21:56:06,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:56:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 120730 states and 174694 transitions. [2022-10-15 21:56:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 21:56:06,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:56:06,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:56:06,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 21:56:06,692 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 21:56:06,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:56:06,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2010782344, now seen corresponding path program 1 times [2022-10-15 21:56:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:56:06,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738838967] [2022-10-15 21:56:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:56:06,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:56:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:56:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:56:06,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:56:06,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738838967] [2022-10-15 21:56:06,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738838967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:56:06,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:56:06,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:56:06,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116072183] [2022-10-15 21:56:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:56:06,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:56:06,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:56:06,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:56:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:56:06,804 INFO L87 Difference]: Start difference. First operand 120730 states and 174694 transitions. Second operand has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)